[Mutual pining + redemption] [A cheerful, clever little rascal x a seemingly cold but actually obedient big dog]
A classmate once asked Shu Yi what kind of person she thought Gu Yanzhou was.
Shu Yi: Helpful, warmhearted, and kind.
Gu Yanzhou's deskmate found that hard to believe. The next day, they went to ask Gu Yanzhou for help with a physics problem. The supposedly "warmhearted and kind" Gu Yanzhou merely said, "Sorry, I don't know," then packed his bag and hurried off to fetch hot water for Shu Yi.
His deskmate finally understood. Gu Yanzhou's helpful nature was probably set to "visible to Shu Yi only."